The Third Polar Prediction Workshop on 4-6 May 2016 was held at the Lamont Doherty Earth Observatory in Palisades, New York USA. Presentations and discussions were given on sources of predictability on sub-seasonal to annual timescales with a special emphasis on sea ice predictions. Results from the eight years of the Sea Ice Outlook were presented and recommendations were discussed for future Outlook activities and the Year of Polar Prediction. Participants were drawn from operational and research communities, as well as forecast users. 70 attended in person, with 39 oral presentations and 14 posters given. The workshop was supported financially by PCPI WCRP, PPP WWRP and Lamont Doherty. Website and organizational support was provided by Betsy Turner-Bogren and Helen Wiggins from ARCUS/SIPN. The organizing committee was composed of Xiaojun Yuan, Helge Goessling, Edward Hawkins, Muyin Wang, and Cecilia Bitz.

Session 2392 Description:Few climate models have accurately predicted recent changes in polar climate and, as a result, projections of seasonal to multidecadal polar climate variability remain uncertain. We welcome presentations that examine the processes that govern seasonal to multidecadal polar climate variability, identify sources of polar climate predictability and characterize uncertainty in polar climate prediction. Studies may address these topics using remote sensing, field-based observations, proxy data, reanalyses, numerical modeling and theory. Assessing model errors related to polar predictability and evaluating renalyses are also important to advance this field. Finally, we welcome studies that link polar climate predictability to extra-polar phenomena. This session seeks to connect the community of atmospheric, oceanic, and cryospheric scientists working on topics relevant to the new Polar Climate Predictability Initiative of the World Climate Research Program.